WO2006097198A1 - Verfahren zur herstellung eines adsorberwärmetauschers - Google Patents
Verfahren zur herstellung eines adsorberwärmetauschers Download PDFInfo
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- WO2006097198A1 WO2006097198A1 PCT/EP2006/001883 EP2006001883W WO2006097198A1 WO 2006097198 A1 WO2006097198 A1 WO 2006097198A1 EP 2006001883 W EP2006001883 W EP 2006001883W WO 2006097198 A1 WO2006097198 A1 WO 2006097198A1
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- heat exchanger
- adhesive
- temperature
- producing
- adhesive layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28004—Sorbent size or size distribution, e.g. particle size
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3042—Use of binding agents; addition of materials ameliorating the mechanical properties of the produced sorbent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3214—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the method for obtaining this coating or impregnating
- B01J20/3223—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the method for obtaining this coating or impregnating by means of an adhesive agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
- B01J20/3236—Inorganic material layers containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
- B01J20/3238—Inorganic material layers containing any type of zeolite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
- B01J20/324—Inorganic material layers containing free carbon, e.g. activated carbon
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B35/00—Boiler-absorbers, i.e. boilers usable for absorption or adsorption
- F25B35/04—Boiler-absorbers, i.e. boilers usable for absorption or adsorption using a solid as sorbent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/003—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using thermochemical reactions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
- F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
- F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
Definitions
- the present invention relates to a process for producing an adsorber heat exchanger, in particular an adsorber heat exchanger, which comprises a heat exchanger structure which is filled with a pre-synthesized solid sorbent material.
- Adsorber heat exchangers comprise a heat exchanger structure which serves to supply and dissipate heat energy and which are in thermal contact with a sorbent material which utilizes phase change of a working medium, a so-called sorptive, for binding and releasing latent heat.
- a so-called sorptive for binding and releasing latent heat.
- the heat energy supplied via the heat exchanger structure can be used to re-evaporate the sorptive.
- so-called sorbent materials are used to carry out the phase changes of the sorptive mostly solid materials. Characteristic of such sorbent materials are their open-pore structure with a high surface to volume ratio. Typical surface sizes of sorbent materials can reach some 100 m 2 / g of sorbent material.
- the internal cavities in these materials have molecular size dimensions. Based on this, the effect of the sorbent materials is to incorporate foreign atoms or foreign molecules into their microporous structure and thus to transfer them from the gas phase into a bound state.
- sorbent materials used in adsorbent heat exchangers are clays, such as bentonite, silica gel or zeolites.
- water is usually used as the working medium, which has a high heat of condensation of 2000 kJ / kg and also represents a problem-free to handle working medium.
- the working medium which is subject to a phase change, referred to with two different terminology.
- the male, not yet sorbed working medium is referred to as Sorptiv
- the on or stored (sorbed) working medium is referred to as sorbate.
- sorptive even in the state in which it is sorbed in the sorbent material (also called sorbent or sorbent).
- Typical applications of adsorber heat exchangers are latent heat storage and adsorption heat pumps.
- the former are used to store thermal energy, while the latter use sorbent materials in heat pump technology.
- Adsorber heat exchangers are usually prepared as a combination of a heat exchanger structure with high thermal conductivity and the sorbent material, which serves for binding and release of the working medium.
- the heat exchanger structures are usually made of metallic materials, such as copper, aluminum or stainless steel, other materials with high thermal conductivity, such as ceramics or certain plastics are conceivable.
- Heat exchangers have, at least in the partial regions, hollow bodies for flowing through with a heat transfer medium, which, however, does not usually come into direct contact with the sorbent material itself.
- the Heat exchange structure then in turn enters into thermal contact with the sorbent material. In the simplest case, this is done in the form of a loose bed, wherein the sorbent material is usually present in powder form or by mixing with a binder in the form of pellets.
- such an easy-to-implement construction has several disadvantages. Thus, there is usually a poor heat transfer between the sorbent material and the walls of the heat exchanger structure. This is further worsened for those portions of the sorbent material which are not in direct abutting contact with the heat exchanger structure.
- Adsorber Creekleyer become known, in which at least parts of the Heat exchanger structure are formed of thin metal plates or metal foils, which are provided in advance with a coating of sorbent materials.
- JP 11300147 A discloses the production of a coated film on the surface of which sorbent particles are at least partially embedded in an adhesive layer. In addition, these sorbent particles are covered with a flat applied film. To build up an adsorber heat exchanger, the films coated in this way are folded in the form of a honeycomb-like structure.
- a heat exchanger element is constructed from a plurality of flat plates, each of these plates carrying a coating with an adhesive layer and inorganic adsorbent particles therein.
- a part of these plates is corrugated and formed a stacking system of a sequence of one corrugated and one flat plate.
- the starting point for the production of the flat plates are aluminum foils with a material thickness of 30 ⁇ m, to which an adhesive layer with a thickness of 10 to 30 ⁇ m is applied by rolling on both sides.
- an adhesive from the polyvinyl acetate group is used.
- This adhesive is first partially dried, so that the adhesive layer is still viscous, but not yet solidified. Then synthetic zeolite particles with a diameter ⁇ 100 microns are inflated onto the adhesive layer, wherein the zeolite particles are substantially completely embedded in the adhesive layer and a loading of zeolite of 12 g / m 2 is formed.
- synthetic zeolite particles with a diameter ⁇ 100 microns are inflated onto the adhesive layer, wherein the zeolite particles are substantially completely embedded in the adhesive layer and a loading of zeolite of 12 g / m 2 is formed.
- Process step is a brief heating within about 10 s to a temperature of 100 - 250 0 C instead. This rapid heating process liberates the gases bound in the pores of the zeolite particles, thereby forming channels for later gas exchange between the embedded zeolite particles and the surface of the coating.
- the adhesive layer solidifies and dries in a dry heating device.
- Adsorbertownleyem already coated with sorbent material films has the advantage that a careful design of the contact area between the wall of the heat exchanger structure and the sorbent material is possible. Furthermore, a suitable channel system for the vaporous sorptive can be provided by the corresponding three-dimensional design of the film structures. The disadvantage of such a procedure, however, is that in addition to the additional steps for the
- JP 2000018767 A a manufacturing method for adsorber heat exchanger has become known, in which first a heat exchanger structure is formed, which is then subsequently filled with sorbent material and adhesive. To circumvent the problem described above, a bed of sorbent material and a thermoplastic adhesive is introduced into the heat exchanger structure. Both the sorbent material and the adhesive are in granular form, with the grain sizes of the sorbent material and those of the adhesive matched. In a subsequent heating step, the adhesive melts and connects the individual sorbent granules selectively.
- the invention has for its object to provide a method for producing an adsorber, which emanates from a first freely designed and separately constructed heat exchanger structure, which is subsequently brought into connection with a sorbent material.
- the combination system of heat exchanger structure and sorbent material should have a high thermal conductivity between the walls of the heat exchanger structure and the sorbent material and moreover allow the most efficient transport of the gaseous sorptive to the microporous structure of the sorbent material.
- the process for the production of the adsorber heat exchanger should further be characterized by a simple realization and enable the production of adsorber heat exchangers with a high adsorption / desorption capacity for the sorptive.
- the inventors have first recognized that the sorbent material in granular form with a sufficient particle size so on the Must be glued internal surfaces of a heat exchanger structure that the individual granules of the sorbent material are only partially embedded in this adhesive layer, that is, a substantial part of its surface can still interact with the gas phase of the sorptive and at the same time each of these granules in a sufficient thermal contact with the walls the heat exchanger structure is.
- the starting point for the production of an adsorber heat exchanger according to the invention is initially a separately produced heat exchanger structure. This is made according to the known method
- Suitable heat exchanger structures realize a circulation system for a heat transfer medium, which communicates with the outside area of the adsorber heat exchanger.
- a lamellar or honeycomb-like structure is preferred. This can also be spongy or foamy.
- an adhesive layer is applied to the wall of the heat exchanger facing the sorbent material, which is referred to below as the inner wall.
- an adhesive is used which first forms a solid layer.
- different methods such as dipping, flooding or sprinkling can be used.
- the process steps of the adhesive coating can also be repeated to set an optimum layer thickness.
- it is particularly advantageous to adjust the viscosity of the applied adhesive for example by means of a temperature control or by an enrichment or an evaporation with solvent.
- Such a powder coating is particularly suitable for flat heat exchanger structures.
- Heat exchangers are first filled with powdered adhesive, which is then in turn activated in areas near the wall of the heat exchanger by heating the heat exchanger structure, so that an adhesion in the region near the wall and a subsequent removal of the non-adhesive, powdery adhesive material from the remote areas such as shaking, Blowing or rinsing is possible.
- the adhesive layer must adhere at least so stable in the region near the wall, that in the subsequent process step, in which the sorbent material is introduced into the heat exchanger, no detrimental mixing of the adhesive with the sorbent material takes place.
- Suitable adhesives are characterized in that they melt above a first temperature and cure above a second temperature, which is higher than the first temperature.
- a suitable adhesive in particular has proven epoxy resin.
- An epoxy resin-based adhesive melts above a first temperature, this is typically at 50 - 70 0 C.
- a second temperature which is in the range of 100 - 200 0 C, then curing takes place, wherein in the epoxy resin crosslinking takes place and this hardened to a thermoset with high temperature stability and a correspondingly high glass transition temperature.
- a solvent such as acetone, methyl ethyl ketone or methylene chloride is preferably used to first liquefy the adhesive.
- the heat exchanger structure is immersed in the epoxy resin solution.
- the excess adhesive is then removed from the heat exchanger structure in the liquid state, and the adhesive layer initially dries to form a solid, that is to say essentially no longer adhesive, adhesive layer.
- the viscosity of the adhesive for example by adjusting the solvent content or temperature, can be adjusted.
- a heat exchanger structure prepared in this way is then filled with granular sorbent material, essentially no adhesive bond is produced between the introduced sorbent particles and the adhesive layer covering the inner wall of the heat exchanger structure without additional heat treatment.
- the adhesive layer heat is supplied. This can be done by introducing the heat exchanger structure into a heating cabinet and / or oven or through the Irradiation with infrared radiation. This heat or energy input can also be referred to as energy input from the outside.
- an inductive heating of the heat exchanger structure comes into consideration. A heating from the inside by the supply of a heat transfer medium corresponding temperature to the heat exchanger structure is conceivable.
- heated sorbent material can be supplied.
- the heating with respect to the duration and the selected temperature profile is controlled so that, starting from the average adhesive thickness and the selected grain size of the granular sorbent material adjacent to the wall of the heat exchanger structure sorbent particles are wetted in their contact area with the molten adhesive, but at the same time with essential parts their surface still sticking out of the adhesive layer.
- the particles therefore penetrate into the adhesive layer, but are not completely enclosed by it, so that they can exchange with the sorptive, that is, these are accessible for the adsorption and desorption of the sorptive and thus for the conversion of latent heat.
- Wall of the heat exchanger structure adjacent granular sorbent particles without their interaction ability with the atmosphere inside the adsorber heat exchanger, that is for an effective exchange with the sorptive, would be impaired.
- the sorbent particles not bonded to the wall region are then removed from the heat exchanger structure. This can be done for example by mechanical measures, such as shaking, or by applying a negative pressure. This measure creates macroscopic cavities and channels through which gaseous sorptive can flow. As a result, sufficient transport of sorptive in gaseous form to the sorbent particles adhered to the walls of the heat exchanger structure will take place. These in turn have a sufficiently good thermal contact with the heat exchanger structure, so that the latent heat released or bound by the phase changes of the sorptive can also effectively flow in and out via the heat exchanger structure.
- the adhesive layer applied in the near-water region is not activated for producing a connection to the sorbent material.
- the desired local distribution of the adhesive in the region near the wall is already ensured by the step of applying the adhesive to the heat exchanger. This can be done, for example, by filling the heat exchanger structure with a powdery adhesive, which then obtains its adhesive force in the area close to the wall by heating the heat exchanger structure, wherein the adhesive remains substantially non-adhesive and powdery in the wall-normal area. Then, the non-adhesive portion can be removed from the heat exchanger. This is best achieved by supporting mechanical measures, such as shaking, blowing or rinsing.
- the sheet adhesive layer in the near wall region then retains its adhesive property, i. an activation after the sorbent material has been introduced; is not necessary for this embodiment.
- FIG. 1 shows a partial section of an adsorber heat exchanger produced by the method according to the invention, comprising a heat exchanger structure with adhesive granular sorbent material.
- FIG. 2 shows a heat exchanger structure
- FIG. 3 shows the heat exchanger structure from FIG. 2 after the application of a rigid adhesive layer.
- FIG. 4 shows the heat exchanger structure from FIG. 3 filled with granular sorbent material.
- FIG. 5 shows the heat exchanger from FIG. 4 after carrying out the heating step for melting and curing the adhesive layer and after removing the non-adhesive sorbent particles.
- FIG. 2 shows, schematically simplified, a heat exchanger structure with lamellae 2.1, 2.2, which consist of a material of high thermal conductivity. Usually, a metal, for example copper, aluminum or stainless steel is used for this purpose. Furthermore, the heat exchanger structure preferably has cavities 3.1, 3.2 for flow through with a heat transfer medium (WTM). These are typically associated with the outside area not shown in FIG. Heat is fed to the later adsorber heat exchanger or expelled from it via the heat transfer medium (WTM) circulating in these cavities 3.1, 3.2.
- WTM heat transfer medium
- Such a heat exchanger structure is typically associated with a container that is sealed to the gas phase of the sorptive and thus encloses a working space, which in the present application is referred to as interior region 4 and serves to receive the sorbent material and the sorbent S.
- interior region 4 a working space
- the nature of the Completion of this interior compared to the exterior in turn depends on the use of the adsorption heat exchanger. So it is also conceivable that this is introduced into a system which allows the passage of the sorptive from a first region in which the adsorption is located in a second region.
- the heat exchanger structure in the inner region 4 comprises lamellar cooling fins which have a fin spacing of 4 mm.
- This and other heat exchanger structures were filled with sorbent material of different particle size.
- heat exchanger structures with fin pitches of 1.6 mm, 2.3 mm, 4 mm and 6 mm were used, whereby the particle sizes of the granular sorbent material were varied and adapted to the respective lamella spacings.
- the lamellar spacings of the heat exchanger structures were adjusted starting from a minimum distance of 4 mm on the respective particle size.
- copper and aluminum were used as lamellae. These are preferably structured lamellae, that is, these are wavy or jagged in order to provide the highest possible surface to volume ratio.
- the adhesive used is an epoxy resin adhesive which has been mixed with a solvent, for example acetone, for applying an adhesive layer on the inner wall of the heat exchanger structure.
- This epoxy resin Solvent mixture is introduced into the inner region 4 of the heat exchanger structure, then excess adhesive is removed by dripping from the inner region, so that preferably a substantially continuous adhesive layer is applied to the inner wall of the heat exchanger structure, without the lamellar structure is clogged. That is, preferably, an adhesive layer will follow the contour of the inner wall without substantially reducing the area of the inner wall of the heat exchanger structure.
- a solid adhesive layer 5 covers the inner wall.
- this solidification or drying step is accelerated by a temperature treatment at 50 0 C, this post-drying is carried out for a period of about 3 hours.
- the layer thickness of the adhesive layer is adjusted to the size distribution of the sorbent particles. If, for example, sorbent particles in a size range of 10-1000 .mu.m and preferably 20-50 .mu.m are used, the thickness of the adhesive layer is adjusted such that it only partially wets them when producing an adhesive bond to the sorbent particles. In a preferred embodiment, for this purpose, the layer thickness is set in a range from one third to two thirds of the particle diameter and in particular the average particle diameter. In a particularly preferred embodiment, the application thickness of the adhesive layer corresponds on average to half the particle size of the sorbent particles, that is, in the case of essentially round sorbent particles, the radius of the layer thickness of the adhesive is substantially assumed.
- FIG. 4 shows a further method step, namely the filling with adsorbent material in granular form.
- adsorbent material For example, synthetically produced zeolite or silica gel may be used. Activated carbon is also suitable as adsorbent material.
- a grain size of the sorbent material of 0.8-1.0 mm is used.
- sorbent particles having a size distribution of 100-200 ⁇ m and of 1-2 mm were used for absorber heat exchangers according to the invention.
- a sufficient filling even of the small cavities in the heat exchanger structure by mechanical means, such as by shaking or a certain injection pressure, can be ensured.
- a heat exchanger structure can be enveloped by a precisely fitting, lined with siliconized paper form.
- Such a heat exchanger structure which is at least partially open in the coating area can then be introduced in a subsequent process step into a suitable container which serves to close off a working area containing the sorbent material and the sorptive.
- the adhesive 5 applied in the form of a solid layer must furthermore have the property of being liquefiable above a first temperature T1 and above a second temperature T2 which is higher than the first temperature
- Temperature T1 is solidified. This required property can be achieved by a Realize epoxy resin adhesive.
- the first temperature T1 at which the adhesive melts in the present embodiment, in a range of 60 - 66 0 C.
- a temperature of 120 - 140 0 C and in particular 120 0 C is sufficient for epoxy resin.
- the heating for melting the adhesive layer, the bonding of the wall-bound sorbent particles and the final curing is achieved by heating the heat exchanger structure via a feed of heat transfer fluid having a temperature of 180 0 C for a period of 30 minutes.
- the non-bonded, ie, the wall-removed sorbent particles are then removed from the inner region 4.
- This in turn can be supported by suitable mechanical measures, such as by shaking.
- the result is a heat exchanger structure with an inner coating of sorbent material, as schematically sketched in FIG.
- the sorbent particles clothe only the inner wall and are glued to this inner wall, the bonding is formed only selectively, that is, the sorbent particles protrude with essential parts of the adhesive layer and can with their still largely intact untreated surface in an exchange with a supplied Sorptive kicking.
- Apart from the immediate wall area are located in the Interior 4 according to a preferred embodiment no non-bonded sorbent particles.
- a further advantage of the formation of an initially rigid adhesive layer on the inner walls of the heat exchanger structure is the fact that the formation of a closed layer simultaneously also provides corrosion protection for the metallic parts of the heat exchanger structure , Such a protection for the heat exchanger material does not result for loose beds of the sorbent material according to the prior art or for only occasionally bonded together sorbent particles.
- the adhesive layer is substantially closed, that is not porous. This is given by the formation of an initially solid and then melted by thermal treatment and curing adhesive layer.
- zeolites are used which have a grain size of 0.2 - 0.3 mm for coating a latent heat exchanger with a
- Lamellar spacing of 2 mm Lamellar spacing of 2 mm.
- an adaptation of the grain size of the sorbent materials to the geometric design of the heat exchanger structure is preferred.
- sorbent materials of smaller particle size for example 100-200 ⁇ m, as well as those having a large particle size, for example from 1 to 2 mm, are also advantageous for a correspondingly adapted heat exchanger structure.
- Particularly preferred is a homogeneous Grain size distribution, as this leads to a uniform sorbent material adhering to the inner wall of the heat exchanger structure adhering layer.
- different particle sizes for the sorbent material can be mixed.
- bimodal grain size distributions can be used, which is particularly advantageous when using large grains.
- Adhesive layer thus offer the sorptive a large, non-diffusion-tight covered surface.
- additional small sorbent particles By using additional small sorbent particles, resulting interspaces between these large sorbent particles on the inner wall of the heat exchanger structure can be covered, which in turn increases the loading density of the sorbent material.
- Irregularly shaped sorbent particles can also be used for coating heat exchanger structures with the method according to the invention.
- the sorbent material in the form of fragments of random grain size and with a broadly scattering particle size distribution. This includes the use of dusty fractions and larger fragments as well as a corresponding mixture thereof.
- the smaller as well as the larger particles are each only partially wetted by the adhesive layer, which is achieved in particular by a mere near-surface melting or by a fast passage through the molten area to the area of curing of the adhesive.
- wetting properties of the adhesive can be adapted to the selected sorbent material, so that although a gluing of the sorbent particles to the walls of the heat exchanger structure succeeds, however large parts of their surfaces can perform an unhindered exchange with the sorptive.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Laminated Bodies (AREA)
- Separation Of Gases By Adsorption (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/908,525 US8590153B2 (en) | 2005-03-15 | 2006-03-02 | Method for producing an adsorption heat exchanger |
AT06707360T ATE527507T1 (de) | 2005-03-15 | 2006-03-02 | Verfahren zur herstellung eines adsorberwärmetauschers |
JP2008501183A JP2008533422A (ja) | 2005-03-15 | 2006-03-02 | 吸着式熱交換器の製造方法 |
EP06707360A EP1859209B1 (de) | 2005-03-15 | 2006-03-02 | Verfahren zur herstellung eines adsorberwärmetauschers |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005012214.0 | 2005-03-15 | ||
DE102005012214 | 2005-03-15 | ||
DE102005058624.4 | 2005-12-07 | ||
DE102005058624A DE102005058624A1 (de) | 2005-03-15 | 2005-12-07 | Verfahren zur Herstellung eines Adsorberwärmetauschers |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006097198A1 true WO2006097198A1 (de) | 2006-09-21 |
Family
ID=36540281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/001883 WO2006097198A1 (de) | 2005-03-15 | 2006-03-02 | Verfahren zur herstellung eines adsorberwärmetauschers |
Country Status (7)
Country | Link |
---|---|
US (1) | US8590153B2 (de) |
EP (1) | EP1859209B1 (de) |
JP (2) | JP2008533422A (de) |
KR (1) | KR101211592B1 (de) |
AT (1) | ATE527507T1 (de) |
DE (1) | DE102005058624A1 (de) |
WO (1) | WO2006097198A1 (de) |
Cited By (2)
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CN101699177B (zh) * | 2009-01-08 | 2012-05-02 | 上海交通大学 | 再生式除湿换热器 |
US8544294B2 (en) | 2011-07-11 | 2013-10-01 | Palo Alto Research Center Incorporated | Plate-based adsorption chiller subassembly |
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DE10321646A1 (de) * | 2002-06-03 | 2004-07-15 | Rubitherm Gmbh | Verfahren zur Wärme- und Kälteversorgung eines Raumes und Gebäude mit einer Mehrzahl mit einer Mehrzahl von Räumen |
DE102010004973A1 (de) * | 2010-01-18 | 2011-07-21 | Behr GmbH & Co. KG, 70469 | Wärmeübertrager |
WO2013001391A1 (en) | 2011-06-30 | 2013-01-03 | International Business Machines Corporation | Adsorption heat exchanger devices |
US10533779B2 (en) * | 2011-06-30 | 2020-01-14 | International Business Machines Corporation | Adsorption heat exchanger devices |
JP5900391B2 (ja) * | 2013-03-19 | 2016-04-06 | 株式会社豊田中央研究所 | 熱交換型反応器及び吸着式ヒートポンプ |
JP6045413B2 (ja) * | 2013-03-21 | 2016-12-14 | 株式会社豊田中央研究所 | 吸着式ヒートポンプ |
DE102013226732A1 (de) | 2013-12-19 | 2015-06-25 | MAHLE Behr GmbH & Co. KG | Adsorberstruktur |
BR112016016131B1 (pt) | 2014-01-10 | 2023-03-07 | Bry Air [Asia] Pvt. Ltd | Dispositivo de troca de calor de adsorvedor híbrido e método de fabricação |
AU2016205833A1 (en) | 2015-01-08 | 2017-08-03 | Bry Air [Asia] Pvt. Ltd. | Split type sorption air conditioning unit |
JP6414511B2 (ja) * | 2015-05-26 | 2018-10-31 | 株式会社デンソー | 吸着器 |
JP2019203611A (ja) * | 2018-05-21 | 2019-11-28 | 株式会社デンソー | 吸着器及び吸着器の製造方法 |
DE102018132348A1 (de) | 2018-12-14 | 2020-06-18 | Sorption Technologies GmbH | Beschichtungsmaterial zur Herstellung einer adsorbierenden, porösen, flexiblen Beschichtung für einen Wärmetauscher und Verfahren zu dessen Herstellung |
JP7239352B2 (ja) * | 2019-03-12 | 2023-03-14 | 株式会社豊田中央研究所 | 熱交換型反応器、および、吸着式ヒートポンプ |
CN116887905A (zh) * | 2021-02-19 | 2023-10-13 | 三菱电机株式会社 | 除湿装置的制造方法、除湿元件及具备该除湿元件的除湿装置 |
FR3133769A1 (fr) * | 2022-03-23 | 2023-09-29 | Fives Cryo | Procede de revetement de surfaces internes d’un echangeur par un solide pulverulent |
KR102483539B1 (ko) * | 2022-04-06 | 2023-01-02 | 한국기계연구원 | 흡착식 히트 펌프용 히트파이프 일체형 반응기 |
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- 2006-03-02 WO PCT/EP2006/001883 patent/WO2006097198A1/de active Application Filing
- 2006-03-02 KR KR1020077022832A patent/KR101211592B1/ko active IP Right Grant
- 2006-03-02 JP JP2008501183A patent/JP2008533422A/ja active Pending
- 2006-03-02 US US11/908,525 patent/US8590153B2/en active Active
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101699177B (zh) * | 2009-01-08 | 2012-05-02 | 上海交通大学 | 再生式除湿换热器 |
US8544294B2 (en) | 2011-07-11 | 2013-10-01 | Palo Alto Research Center Incorporated | Plate-based adsorption chiller subassembly |
US9568222B2 (en) | 2011-07-11 | 2017-02-14 | Palo Alto Research Center Incorporated | Plate-based adsorption chiller subassembly |
Also Published As
Publication number | Publication date |
---|---|
ATE527507T1 (de) | 2011-10-15 |
KR20070120519A (ko) | 2007-12-24 |
DE102005058624A1 (de) | 2006-09-21 |
KR101211592B1 (ko) | 2012-12-12 |
US20090217526A1 (en) | 2009-09-03 |
EP1859209A1 (de) | 2007-11-28 |
JP2011252700A (ja) | 2011-12-15 |
US8590153B2 (en) | 2013-11-26 |
JP2008533422A (ja) | 2008-08-21 |
EP1859209B1 (de) | 2011-10-05 |
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